Question

wou
2. On a certain sum the interest paid after 3 years is 450 at 5% rate of interest per
annum. Find the sum.​

Answer 1

Answer:

\begin{gathered}Required \: sum\\=Rs\:3000\end{gathered}

Requiredsum

=Rs3000

Step-by-step explanation:

\begin{gathered}Let\: Principal = Rs P,\\Given \:simple\: interest (I)=Rs\:450\\Time(T)=3\: years\\Rate\:of\: interest (R)=5\% \:p.a\end{gathered}

LetPrincipal=RsP,

Givensimpleinterest(I)=Rs450

Time(T)=3years

Rateofinterest(R)=5%p.a

\begin{gathered}We\:know \:that\\\boxed {P=\frac{100\times I}{TR}}\end{gathered}

Weknowthat

P=

TR

100×I

\begin{gathered}\implies P=\frac{100\times 450}{3\times 5}\\=Rs\:3000\end{gathered}

⟹P=

3×5

100×450

=Rs3000

Therefore,

\begin{gathered}Required \: sum\\=Principal\\=Rs\:3000\end{gathered}

Requiredsum

=Principal

=Rs3000